/**
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.hyperledger.core;

import org.hyperledger.common.Hash;

import java.util.concurrent.LinkedBlockingQueue;

public class ClientEventQueue {
    private final LinkedBlockingQueue<StoreEvent> storeEvents = new LinkedBlockingQueue<>();

    public void sendStoreEvent(StoreEvent event) {
        storeEvents.offer(event);
    }

    public StoreEvent getNextStoreEvent() throws InterruptedException {
        return storeEvents.take();
    }

    public static class StoreEvent<T> {
        private T content;

        public T getContent() {
            return content;
        }

        public StoreEvent(T content) {
            this.content = content;
        }
    }

    public static class TransactionAdded extends StoreEvent<ValidatedTransaction> {
        public TransactionAdded(ValidatedTransaction content) {
            super(content);
        }
    }

    public static class Rejected extends StoreEvent<Hash> {
        private final String command;
        private final int code;

        public Rejected(String command, Hash hash, int code) {
            super(hash);
            this.command = command;
            this.code = code;
        }

        public String getCommand() {
            return command;
        }

        public int getCode() {
            return code;
        }
    }

    public static class BlockAdded extends StoreEvent<BlockStoredInfo> {
        public BlockAdded(BlockStoredInfo content) {
            super(content);
        }
    }

    public static class HeaderAdded extends StoreEvent<HeaderStoredInfo> {
        public HeaderAdded(HeaderStoredInfo content) {
            super(content);
        }
    }
}
